Hi all,
I am very new to this group. I have a voip application (softphone)
which uses narrowband codecs (G.711 and G.729).Even it has explicit voice
quality enhancement dsp modules (Baackground noise reduction , Automatic
Gain Control and Acoustic Echo Cancellation) the quality of the speech is
not yet satisfactory. After doing a long term research to get better speech
quality on this I decided to go with a wideband with variable bitrate
codec.
From this group I gathered lot of information about wideband codec as
well as speex.
Could anyone please help me to get rid of the following doubts....
1. Can I use speex directly in my application like narrow band codecs?
2. Is there any modifications needed in the speex code?
3. How much flexible speex is?
--
Thanks & Regards
Vijay Sukumaran Nair.
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> From this group I gathered lot of information about wideband > codec as well as speex. > Could anyone please help me to get rid of the following doubts.... > > 1. Can I use speex directly in my application like narrow band codecs?Sure, why not? If you want to support wideband, all you need to do is sample at 16 kHz instead of 8 kHz and use a wideband codec.> 2. Is there any modifications needed in the speex code?Modifications for what? Using wideband? Should work out-of-the-box for you.> 3. How much flexible speex is?Very. Multiple sampling rates, bit-rates, variable complexity, ... Jean-Marc